US

Graduates toss their caps in the air at the conclusion of the commencement ceremony for the U.S. Naval Academy Class of 2015 in Annapolis...Graduates toss their caps in the air at the conclusion of the commencement ceremony for the U.S. Naval Academy Class of 2015 in Annapolis, Maryland May 22, 2015.

Kevin Lamarque/Reuters

Graduates toss their caps in the air at the conclusion of the commencement ceremony for the U.S. Naval Academy Class of 2015 in Annapolis, Maryland on Friday

Workers clean up an oil slick along the coast of Refugio State Beach in Goleta...Workers clean up an oil slick along the coast of Refugio State Beach in Goleta, California, United States, May 20, 2015. A pipeline ruptured along the scenic California coastline on Tuesday, spilling some 21,000 gallons (79,000 liters) of oil into the ocean and on beaches before it could be secured, a U.S. Coast Guard spokeswoman said

Lucy Nicholson/Reuters

Workers clean up an oil slick along the coast of Refugio State Beach in Goleta, California, United States on Wednesday. A pipeline ruptured along the scenic California coastline on Tuesday, spilling some 21,000 gallons (79,000 liters) of oil into the ocean and on beaches before it could be secured

 Investigators and first responders work near the wreckage of Amtrak Northeast Regional Train 188, from Washington to New York, that derailed yesterday May 13, 2015 in north Philadelphia, Pennsylvania. At least six people were killed and more than 200 others were injured in the crash

Win McNamee/Getty Images

Investigators and first responders work near the wreckage of Amtrak Northeast Regional Train 188, from Washington to New York, that derailed yesterday on Wednesday in north Philadelphia, Pennsylvania

US President Barack Obama and Japanese Prime Minister Shinzo Abe attend official welcoming ceremonies on the South Lawn of the White House in Washington, DC, April 28, 2015.

Mandel Ngan/AFP

US President Barack Obama and Japanese Prime Minister Shinzo Abe attend official welcoming ceremonies on the South Lawn of the White House in Washington, DC on Tuesday

The Empire State Building is lit in red ...The Empire State Building is lit in red and purple April 14, 2015 in New York as part of the effort to bring attention to the 219 missing Nigerian schoolgirls kidnapped by Boko Haram a year ago on April 14, 2014.  AFP PHOTO /  TIMOTHY  A. CLARYTIMOTHY A. CLARY/AFP/Getty Images

Timothy A.Clary/AFP/Getty

The Empire State Building is lit in red and purple in New York as part of efforts to bring attention to the 219 missing Nigerian schoolgirls kidnapped by Boko Haram a year ago. 

A worker lowers himself from a scaffold in front of a Hillary Clinton sign near her campaign headquarters in the Brooklyn borough of New York, April 14, 2015. An unknown entity placed  Don t say  signs outside Clinton's Brooklyn Heights headquarters before her announcement Sunday

Brendan McDermid/Reuters

A worker lowers himself from a scaffold in front of a Hillary Clinton sign near her campaign headquarters in the Brooklyn borough of New York on Tuesday

Fans listen to David Guetta at the Coachella Valley Music and Arts Festival in Indio, California.

Lucy Nicholson/Reuters

Fans listen to David Guetta at the Coachella Valley Music and Arts Festival in Indio, California.

A woman does acrobatics as she waits for a band to start playing at the Coachella Valley Music and Arts Festival in Indio, California

Lucy Nicholson/Reuters

A woman does acrobatics as she waits for a band to start playing at the Coachella Valley Music and Arts Festival in Indio, California.

Construction workers Alex Hernandez (R) and Raul Buenrostro (L) begin demolition of a swimming pool at an apartment complex on April 8, 2015 in Hayward, California.  As California enters its fourth year of severe drought, some California residents are opting to have their home swimming pools removed as they face a mandatory 25 percent reduction in water use.

Justin Sullivan/Getty Images

Construction workers begin demolition of a swimming pool at an apartment complex in Hayward, California as the state enters its fourth year of drought. Some residents are having their pools removed as they face a mandatory 25% reduction in water use.

A protester pauses by a glass memorial on the spot where Charly Leundeu Keunang, 43, was shot by police on skid row, during a march to commemorate the more than 617 people they say have been killed by law enforcement in LA County since 2000, in Los Angeles, California

Lucy Nicholson/Reuters

Protester pauses by a glass memorial on the spot where Charly Leundeu Keunang, 43, was shot by police on skid row, during a march to commemorate the more than 617 people they say have been killed by law enforcement in LA County since 2000

US Secretary of State John Kerry looks at the view of Lake Geneva from his hotel room as the Iran nuclear talks continue, in Lausanne, Switzerland.

Laurent Gillieron/EPA

US Secretary of State John Kerry looks at the view of Lake Geneva from his hotel room as the Iran nuclear talks continue, in Lausanne, Switzerland.

 the United Launch Alliance Atlas V rocket with NASA's Magnetospheric Multiscale (MMS) spacecraft onboard launches from the Air Force Station Space Launch Complex 41 March 12, 2015 in Cape Canaveral, Florida. NASA's MMS mission will study how magnetic fields around Earth connect and disconnect, explosively releasing energy via a process known as magnetic reconnection. MMS consists of four identical spacecraft that work together to provide the first three-dimensional view of this fundamental process, which occurs throughout the universe.

Aubrey Gemignani/NASA via Getty Images

the United Launch Alliance Atlas V rocket with NASA’s Magnetospheric Multiscale (MMS) spacecraft onboard launches from the Air Force Station Space Launch Complex 41 in Cape Canaveral, Florida. NASA’s MMS mission will study how magnetic fields around Earth connect and disconnect, explosively releasing energy via a process known as magnetic reconnection. MMS consists of four identical spacecraft that work together to provide the first three-dimensional view of this fundamental process, which occurs throughout the universe.

Police remove a protester holding a sign as U.S. Secretary of State John Kerry testifies at a Senate Foreign Relations Committee hearing on Capitol Hill in Washington...Police remove a protester holding a sign as U.S. Secretary of State John Kerry testifies at a Senate Foreign Relations Committee hearing on "The President's Request for Authorization to Use Force Against ISIS: Military and Diplomatic Efforts" on Capitol Hill in Washington March 11, 2015.

Kevin Lamarque/Reuters

Police remove a protester holding a sign as US Secretary of State John Kerry testifies at a Senate Foreign Relations Committee hearing on “The President’s Request for Authorisation to Use Force Against Isis: Military and Diplomatic Efforts” on Capitol Hill in Washington on Wednesday

The moon sets in the early morning hours as a man walks along an ocean pier in Oceanside, California on Thursday

Mike Blake/Reuters

The moon sets in the early morning hours as a man walks along an ocean pier in Oceanside, California on Thursday

Anti-Zionist ultra-orthodox Jews of the Naturei Karta movement hold signs outside the Washington Convention Center where Israeli Prime Minister Benjamin Netanyahu addressed the American Israel Public Affairs Committee (AIPAC) policy conference inb Washington, DC, on March 2, 2015. Netanyahu is ramping up his mission to foil an emerging White House-backed nuclear deal with Iran with the speech to the powerful pro-Israel AIPAC lobby.

Nicholas Kamm/AFP

Anti-Zionist ultra-orthodox Jews of the Naturei Karta movement hold signs outside the Washington Convention Centre where Israeli Prime Minister Benjamin Netanyahu addressed the American Israel Public Affairs Committee (AIPAC) policy conference in Washington, DC, on Monday

An ice covered statue is seen in Lafayette Square March 2, 2015 in Washington, DC.

Brendan Smialowski/AFP

An ice covered statue is seen in Lafayette Square on Monday in Washington, DC

Pedestrians make their way along a snow covered street during a winter snow storm in Cambridge, Massachusetts February 9, 2015.  Boston and other areas of the Northeast, already buried under about a yard of snow, braced for up to two more feet through early Tuesday while more rain and high winds were in store for parts of the Pacific coast, forecasters said on Sunday

Brian Snyder/reuters

Pedestrians make their way along a snow-covered street during a storm in Cambridge, Massachusetts. Boston and other areas of the Northeast are braced for more snow.

An airplane flies past the rising moon in its waning gibbous stage as viewed from Jersey City, N.J., Thursday, Feb. 5, 2015. The statue known as Civic Fame, bottom left, which stands atop of the Manhattan Municipal Building in New York, is also visible.

Julio Cortez/AP

An aeroplane flies past the rising moon in its waning gibbous stage as viewed from Jersey City, New Jersey. The statue known as Civic Fame, bottom left, which stands on the Manhattan Municipal Building in New York, is also visible.

Protesters listen during a hearing of the Senate Armed Services Committee on Capitol Hill on February 5, 2015 in Washington, DC. Witnesses testified about the use of the Guantanamo Detention Facility in Cuba and US detention policy.

Brendan Smialowski/AFP

Protesters listen during a hearing of the Senate Armed Services Committee on Capitol Hill on Thursday in Washington, DC. Witnesses testified about the use of the Guantanamo Detention Facility in Cuba and US detention policy

Groundhog Club handler Ron Ploucha holds Punxsutawney Phil, the weather prognosticating groundhog, during the 129th celebration of Groundhog Day on Gobbler's Knob in Punxsutawney, Pa. Monday, Feb. 2, 2015. Phil saw his shadow, predicting six more weeks of winter weather

Gene J. Puskar/AP

Groundhog Club handler Ron Ploucha holds Punxsutawney Phil, the weather prognosticating groundhog, during the 129th celebration of Groundhog Day on Gobbler’s Knob in Punxsutawney on Monday